In Chapter 4 we focused mostly on media and the physical layer (layer 1 of the OSI model), and did not include any discussion about specific network components. Similarly, Chapter 5, which examined ...

In Chapters 4, 5, and 6, we introduced many of the concepts and hardware components related to layers 1 and 2 of ... a WAN perspective and discuss the third layer of the OSI model the network layer.

The CPU and memory work together to process instructions and run programs. There are different types of memory – volatile and non-volatile. The Arithmetic and Logic Unit (ALU) is where the CPU ...